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Finding the Fourth Proportional to 171,269.34, 256,794.39 and 82,345.74

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Solution

The fourth proportional to 171,269.34, 256,794.39 and 82,345.74 is: 123,465.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,269.34 : 256,794.39 = 82,345.74 : x
  2. Step 2: Convert to fraction form
    171,269.34/256,794.39 = 82,345.74/x
  3. Step 3: Cross multiply
    171,269.34x = 256,794.39 × 82,345.74
  4. Step 4: Simplify right side
    171,269.34x = 21,145,924,072.40
  5. Step 5: Solve for x
    x = 21,145,924,072.40/171,269.34
  6. Step 6: Final answer
    x = 123,465.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.